In this paper, an objective analysis scheme is designed for the multilevel nested grid and irregular grid of numerical weather prediction models. The method can either be used for the irregularly spaced latitude longitude grid system or meet the needs for the vocational work and scientific research in meteorological observatories and weather stations. The scheme presented in this paper is simple, practical, and easy to learn. Cases of July 2, 08 GMT and December 25, 08GMT, 1979 are selected to analyze the 500 hPa height field by using the 500 hPa height and wind data. The experimental results are proved to be quite satisfactory.